bratface:I am not an expert but why can't they dig around the tanks and then fill it all in with concrete?

This would most likely be impossible without causing massive leaks or ruptures. Most tanks that are installed in the ground (which the tanks at Hanford are) have cement retaining rings poured around the steel infrastructure.

bratface:Yes I know it comes down to money. I live in Washington State and have heard about the evils of Hanford all my life. I was hoping something would be done in my lifetime.

They have been doing "something" for years. It's not just as easy as sucking out the tanks and vitrifying the waste. The tanks now contain large quantities of "goop" and solids that can't easily be pumped to the treatment plant. They actually use remove control tractors which they lower into the tanks to push the goop and solids around and mix it with water so it can be pumped out.